The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 1994
Filed:
Oct. 29, 1992
Applicant:
Inventors:
Heinz Frey, Menziken, CH;
Kamil Prochazka, Windisch, CH;
Assignee:
Asea Brown Boveri Ltd., Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ; F15B / ; F15B / ;
U.S. Cl.
CPC ...
13759615 ; 137556 ; 137557 ; 13759616 ; 251 29 ; 251 3001 ;
Abstract
A supply circuit for a hydraulic fluid system has at least one pressure generation device, at least one connecting valve, a main line and a safety deactivation unit. The supply circuit permits a hydraulic fluid to be fed in such a way that, in all operating states, occurrence of pressure surges in the system is prevented. The connecting valve is designed as a slide valve with three control edges for regulating filling, operation and testing functions. A plate valve, in fluid communication with the slide control valve, is designed as an outflow amplifier and fulfills the safety related tasks.